BaAl_1.4Si_0.6O_3.4N_0.6:Eu²⁺ green phosphors’ application for improving luminous performance

Abstract

The molten salt synthesis (MSS) method was used to effectively prepare green phosphors BaAl<sub>1.4</sub>Si<sub>0.6</sub>O<sub>3.4</sub>N<sub>0.6</sub>:Eu<sup>2+</sup> (or BSON:Eu<sup>2+</sup>) via one homogeneous sphere-like morphology utilizing NaNO3 in the form of the reacting agent. The phosphors produced one wide stimulation spectrum between 250 and 460 nm, as well as a significant green emission has a maximum point at 510 nm owing to the 4f<sup>6</sup>5d<sup>1</sup>-4f<sup>7</sup> (<sup>8</sup>S<sub>7/2</sub>) shifts for Eu<sup>2+</sup> ions. With illumination under 365 as well as 450 nm, the ideal discharge strengths for the specimen prepared utilizing melted salt would receive a boost of 17% and 13%, surpassing the specimen prepared utilizing the traditional solid-state reaction (SSR) approach. The abatement of concentration for the ions of Eu<sup>2+</sup> from BSON:Eu<sup>2+</sup> is 5 mol%. In addition, the interactivity of dipole-dipole would be the cause of said abatement. Heat abatement would be studied utilizing the formation coordinate method with abatement temperature reaching ∼200 <sup>o</sup>C. Elemental mapping as well as power-dispersing X-ray spectroscopy (EDS) spectra demonstrated that the expected BaAl<sub>1.4</sub>Si<sub>0.6</sub>O<sub>3.4</sub>N<sub>0.6</sub>:Eu<sup>2+</sup> materials were formed.